package interfaces;
import java.nio.*;
import java.util.*;
public class RandomStrings  implements Readable{
	private Random rand = new Random(47);
	private static final char[] CAPITALS = "ABCDEFG HIJKLMN OPQRST UVWXYZ".toCharArray();
	private static final char[] LOWERS = "abcdefghijklmnopqrstuvwxyz".toCharArray();
	private static final char[] VOWELS = "aeiou".toCharArray();
	private int count;
	
	public RandomStrings(int count) {
		// TODO 自动生成的构造函数存根
		this.count =count;
	}
	@Override 
	public int read(CharBuffer cb) {
		if(count--==0) {
			return -1;
		}
		cb.append(CAPITALS[rand.nextInt(CAPITALS.length)]);
		for(int i=0;i<4;i++) {
			cb.append(VOWELS[rand.nextInt(VOWELS.length)]);
			cb.append(LOWERS[rand.nextInt(LOWERS.length)]);
		}
		cb.append(" ");
		return 10;
	}
	public static void main(String[] args) {
		Scanner s= new Scanner (new RandomStrings(10));
		while(s.hasNext()) {
			
			System.out.println(s.next());
		}
	}

}
